HomeMy WebLinkAboutObservation of Excavation 05.30.2024CTLITHOMPSON
May 30, 2024
High Performance Hangars, LLC
P.O. Box 7609
Aspen, CO 81612
Attention: Adrian Scaife
Subject: Footing Subgrade Observation
Garfield County Airport Hangars
Hangars 1 and 2
Garfield County, Colorado
Project No. GS06848.000E-305
CTLIThompson, Inc. (CTLIT) visited the Garfield County Airport Hangars project on May
23, 2024. The purpose of our site visit was to observe the footing subgrade soils in the founda-
tion excavation for Hangars 1 and 2. The soils exposed at footing elevation consisted of silty to
sandy clay soil. Photographs taken at the time of our site visit are attached.
Kumar & Associates, Inc. performed a geotechnical engineering investigation for the
Garfield County Airport Hangars project (Project No. 22-7-255; report dated June 13, 2022; re-
port updated August 17, 2022). The report recommends that the building be founded with
spread footings bearing on the natural silt and clay soils.
Based on our observations during our May 23, 2024 site visit, we judge the undisturbed
native soils exposed at footing elevation are suitable for support of footings designed for a maxi-
mum allowable bearing pressure of 2,000 psf.
We are available to discuss the contents of this letter. Please contact us if you have ques-
tions or need additional information.
CTLITHOMPSON, INC.
Ryan R. Barbone, P
Division Manager
rbarbone aactlthomo:
CTLIThompson, Inc.
Denver, Fort Collins, Colorado Springs, Glenwood Springs, Pueblo, Summit County — Colorado
Cheyenne, Wyoming and Bozeman, Montana
ray r y� �t,2 77'IC�PFr�r34TT - t:
��4'S� � may, `'-'''"tc ,�" � h �► a .
Hangars 1 and 2, overall site
HIGH PERFORMANCE HANGARS, LLC Fig. 1
GARFIELD COUNTY AIRPORT HANGARS
CTLIT PROJECT NO. GS06848.000-305
i .0
i rtl !;
Sva
q.
�rx
�Y
Hangars 1 and 2, pilaster, typical
HIGH PERFORMANCE HANGARS, LLC Fig. 2
GARFIELD COUNTY AIRPORT HANGARS
CTLIT PROJECT NO. GS06848.000-305
Hangars 1 and 2, south footing line
HIGH PERFORMANCE HANGARS, LLC Fig. 3
GARFIELD COUNTY AIRPORT HANGARS
CTLIT PROJECT NO. GS06848.000-305
Hangars 1 and 2, west footing line
HIGH PERFORMANCE HANGARS, LLC Fig. 4
GARFIELD COUNTY AIRPORT HANGARS
CTLIT PROJECT NO. GS06848.000-305